Location:
Search - DSSS and matlab
Search list
Description: 本人收集并经过运行的与直接扩频通信的相关的两个非常好的MATLAB仿真程序！-I collect and run through the DSSS and the associated two very good way MATLAB Order!
Platform: |
Size: 7267 |
Author: 王炬 |
Hits:
Description: There are two files in the zip folder. bpsk_spread.m and jakesmodel.m
Steps for simulation:
1] Run jakesmodel.m first
2] Then run bpsk_spread.m .
3] Note that during the first run bpsk_spread.m has no rayleigh fading.This is because the corresponding code has been commented
4] The resulting performance is stored in BER_awgn.
5] Now uncomment the Rayleigh Fading code in bpsk_spread.m file.
6] Same time comment BER_awgn (line 112) and uncomment BER_ray variable.
7] Run the simulation.
To compare the perfromances of the receiver using DSSS plot the BER_awgn and BER_ray
>>semilogy([1:8],BER_awgn(1:8), g* )
hold on
semilogy([1:8],BER_ray(1:8), -.b* )
hold on
grid on
-There are two zip files in the folder. Bpsk_ spread.m and jakesmodel.m Steps for simulatio n : 1] Run jakesmodel.m first 2] Then run bpsk_spre ad.m. 3] Note that during the first run bpsk_spr ead.m has no Rayleigh fading.This is because th e corresponding code has been commented 4] The r esulting performance is stored in BER_awgn. 5] Now uncomment the Rayleigh Fading code in bpsk_ spread.m file. 6] Same time comment BER_awgn (l 112 produced mostly in developed areas) and uncomment BER_ray variable. 7] Run the simulation. To compare the perfromances of the receiver using DSSS plot and the BER_awgn BE R_ray
Platform: |
Size: 3072 |
Author: 朱振希 |
Hits:
Description: 直接序列扩频通信可以有效地抵抗来自信道中的窄带干扰。在一个直扩通信系统中,扩频是通过伪噪声序列(PN)对发送的信息数据进行调制来实现的。在接收端,原伪噪声序列和所收信号的相关运算可将窄带干扰扩展到DS信号的整个频带,使干扰等效为幅度较低频谱较平坦的噪声；同时，将DS信号解扩,恢复原始信息数据。-direct sequence spread spectrum communication can be effective resistance from the channel narrowband interference. In a DSSS system. Spreading through the sequence of pseudo-noise (PN) to send the right message to data modulation to achieve. On the receiving end, the original pseudo-noise sequence and the received signal may be related Operational narrowband interference signal DS extended to the whole band, make tampering equivalent to a lesser extent than the flat spectrum of noise; Meanwhile, the DS signal disspreaded restore the original data.
Platform: |
Size: 111616 |
Author: 赵艳朝 |
Hits:
Description: 关于zigbee的一篇论文,国外的,写的相当不错,推荐同行的-on a zigbee the papers abroad, the writing is quite good, look at the recommendation of peer
Platform: |
Size: 1192960 |
Author: 成章 |
Hits:
Description: 本人收集并经过运行的与直接扩频通信的相关的两个非常好的MATLAB仿真程序！-I collect and run through the DSSS and the associated two very good way MATLAB Order!
Platform: |
Size: 7168 |
Author: 王炬 |
Hits:
Description: 此代码仿真了一个语音输入输出系统，语音信号经过AD转换后，经过DSSS调制解调后，通过DA转换还原输入的声音，每一步的的波形都可以观测，对实际DSSS系统设计有很大的参考价值-This code simulation of a voice input and output systems, speech signal after AD conversion after DSSS modem through DA conversion to restore the input voice, each step of the waveform can be observed, the actual design of DSSS systems have great reference value
Platform: |
Size: 416768 |
Author: joshua |
Hits:
Description: 设计实现了DSSS通信中RAKE接收的功能，包括m序列生成的m文件和一个数据源扩展程序，可以仿真RAKE接收的误码率，便于分析性能！-Design and Implementation of a DSSS communication RAKE receiver functions, including the m sequence generated m file and a data source extension, you can simulation RAKE receiver BER to facilitate analysis of the performance!
Platform: |
Size: 1024 |
Author: ninghongyu |
Hits:
Description: 用matlab进行直序扩频通信系统误码率的仿真分析PN码同步方法的比较与仿真-Using matlab for Direct Sequence Spread Spectrum Communication System Simulation and Analysis of bit error rate PN code synchronization methods and simulation
Platform: |
Size: 12288 |
Author: 吴胜军 |
Hits:
Description: 直接序列扩频Matlab程序
直接序列扩频通信可以有效地抵抗来自信道中的窄带干扰。在一个直扩通信系统中,扩频是通过伪噪声序列(PN)对发送的信息数据进行调制来实现的。在接收端,原伪噪声序列和所收信号的相关运算可将窄带干扰扩展到DS信号的整个频带,使干扰等效为幅度较低频谱较平坦的噪声；同时，将DS信号解扩,恢复原始信息数据。-Matlab procedures for direct sequence spread spectrum direct sequence spread spectrum communications can effectively resist the narrow-band interference from the channel. In a DSSS communication systems, spread spectrum pseudo-noise sequence through (PN) for sending information data modulation is achieved. At the receiving end, the original pseudo-noise sequence and the received signal related to computing can be extended to narrow-band interference signal DS the whole band, so interference is equivalent to a lesser extent than the flat spectrum of noise At the same time, the DS signal despreading and restore original information data.
Platform: |
Size: 1024 |
Author: 周一 |
Hits:
Description: 利用MATLAB实现多用户的扩频通信的发送和接受，程序可以直接跑，不需要改动！-The use of MATLAB implementation of multi-user spread spectrum communication send and receive, the program can be directly run, no changes!
Platform: |
Size: 3072 |
Author: huangshuangping |
Hits:
Description: 一个四用户的扩频通信系统，扩频增益为N=16，采用Walsh码进行直接序列扩频，BPSK调制，无线信道为AWGN(加性高斯白噪声信道)信道(AWGN信道：不考虑通信信道信号时，由宽频范围描述的统计随机无线噪声。)。在接收端进行解扩，解调，判决，通过仿真得到其中一个用户的误比特率与信噪比的仿真结果。-A four-user spread spectrum communication system, spreading gain for N = 16, using Walsh code Direct Sequence Spread Spectrum, BPSK modulation, channel for AWGN (additive white Gaussian noise channel) channel (AWGN channel: do not consider communication channel signals, described by the scope of broadband wireless random statistical noise.). At the receiving end for despreading, demodulation, judgments, through the simulation to be one of a user' s bit error rate and SNR of the simulation results.
Platform: |
Size: 9216 |
Author: jehuty |
Hits:
Description: bpsk通过噪声信道然后通过双边带调制，然后解调-bpsk through the noisy channel and then through bilateral band modulation, and demodulation
Platform: |
Size: 38912 |
Author: jia |
Hits:
Description: dsss的matlab代码和c源码，对刚开始接触扩频的朋友有帮助，用于快速入门，加深理解-dsss the matlab code and c source code, for spreading a friend just came into contact with helpful for quick entry, to deepen understanding of
Platform: |
Size: 2048 |
Author: 将乌龟 |
Hits:
Description: (1) 产生数值为±1的用户随机数据；给出Matlab下对应的模块；
(2) 产生并给出64×64的Walsh矩阵，作为用户接入的扩频码；
(3) 利用上述一个用户的扩频码和用户数据演示扩频过程；给出Simulink工作框图；
(4) 利用FFT，计算并画出基带数据和扩频信号的频谱（在一个图中给出）；
-(1) value of ± 1 generated random data users given under the corresponding Matlab module (2) generation and gives the Walsh 64 × 64 matrix, as the user access to the spreading code (3) the use of the a user' s spreading code and spread spectrum user data presentation process given work Simulink block diagram (4) the use of FFT, calculate and draw the base-band spectrum data and the spread spectrum signal (given in a diagram)
Platform: |
Size: 9216 |
Author: 芊屹 |
Hits:
Description: 本文件包含了两个直扩和跳频的例子，用MATLAB语言实现，而且还包括例子的原文及大量注释，十分详细-This document contains two examples of DS and FH, with the MATLAB language, but also examples of the original and a lot of notes, very detailed
Platform: |
Size: 26624 |
Author: wujian |
Hits:
Description: 直接序列扩频通信系统，实现PN码同步，采用串行滑动相关捕获相关峰-Direct sequence spread spectrum communication system, and PN code synchronization, sliding-related capture serial correlation peak
Platform: |
Size: 7168 |
Author: liufei |
Hits:
Description: 基于CDMA的FHSS和DSSS码的matlab仿真文件，能够生成相对应的数据。-Based on the FHSS and DSSS CDMA matlab simulation code files to generate corresponding data.
Platform: |
Size: 3072 |
Author: yqyte |
Hits:
Description: 扩频通信系统及MATLAB仿真
先阐述了扩频通信的基本原理、主要性能指标及其工作特点,然后根据香农定理和柯捷尔尼可夫潜
在抗干扰理论,借助MatLab工具箱和MonteCarlo仿真算法,建立了直接序列扩频通信系统仿真模型.通
过分析无干扰时的误码率仿真曲线与理论计算值,证明了所建仿真模型的正确性。
-The spread spectrum communication system and MATLAB simulation first elaborated the basic principles of spread spectrum communication, key performance indicators and their characteristics, and then according to the Shannon theorem 鏌
Platform: |
Size: 168960 |
Author: 琬 |
Hits:
Description: 使用simulink搭建一个直接序列扩频调制系统模型，能够正常运行，有时域波形和频谱波形。(Simulink is used to construct a direct sequence spread spectrum modulation system model, which can operate normally, with time domain waveform and spectrum waveform.)
Platform: |
Size: 147456 |
Author: 王家小丫头 |
Hits:
Description: simulation of matlab code for all communication blocks and links , essential for comm. engineeres.
Platform: |
Size: 140816 |
Author: hamidmsadeghi87 |
Hits: